title: Localization of the placenta by means of a radio-active isotope.
mesh_terms: D005260:Female; D006801:Humans; D007554:Isotopes; D010920:Placenta; D010923:Placenta Previa / Q000175:diagnosis*; D011247:Pregnancy; D012964:Sodium; D012979:Sodium Radioisotopes
chemical_list: D007554:Isotopes; D012979:Sodium Radioisotopes; D012964:Sodium
keywords: PLACENTA; PLACENTA PRAEVIA/diagnosis; SODIUM, RADIOACTIVE